<div>{{message}}</div>
<form style="max-width: 330px;" action="{{monthlyBudgetAddUrl}}" method="post">
    <div><label>Month {{error.month}}</label><input type="text" name="month" class="form-control"/></div>
    <div><label>Budget {{error.budget}}</label><input type="text" name="budget" class="form-control"/></div>
    <hr/>
    <div><input type="submit" value="Add" class="btn btn-lg btn-primary btn-block"/></div>
</form>
